Bare/Uncoated Wire

Sometimes you need to get down to the bare essentials. Especially if you want to do some soldering or patina-ing. Bare copper wire - for practicing your wire wrapping, soldering, metal smithing. No anti-tarnish coating to burn off.
Of course, this means that it will tarnish/age/change colour. Polish to brighten, or apply your own with Renaissance Wax.